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DTC Troubleshooting

DIAGNOSTIC PROCEDURES CHART

Step Action YES NO
1  Was "Engine and Emission Control System Check" performed?  Go to Step 2. Go to ENGINE AND EMISSION CONTROL SYSTEM CHECK .
2  DTC check 
Is there any DTC(s) other than P2195 and P2196? 		 Go to troubleshooting for applicable DTC. Go to Step 3.
3  A/F sensor signal circuit check 
  1. Confirm that ignition mode of keyless push start system is "OFF".
  2. Disconnect "C01", "E01" and A/F sensor connectors.
  3. Check for proper terminal connection to "C01", "E01" and A/F sensor connectors.
  4. Check the following points.
    • Resistance of "A3" and "A4" circuits: less than 1 Ω
    • Resistance between each of "A3" and "A4" circuits and ground: infinity
    • Resistance between each of "A3" and "A4" circuit terminals and each terminal at A/F sensor connector: infinity
    • Voltage of "A3" and "A4" circuits: 0 - 1 V (with ignition mode of keyless push start system in "ON")

Are they in good condition? 		 Go to Step 4. Repair or replace defective wire harness.
4  DTC recheck 
  1. Replace A/F sensor, see A/F SENSOR AND HO2S REMOVAL AND INSTALLATION .
  2. Perform DTC confirmation procedure and check DTC.

Is DTC P2195 and P2196 still detected? 		 Replace ECM and recheck DTC, see ECM REMOVAL AND INSTALLATION . End.
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